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Finding the Fourth Proportional to 619,773.64, 855,289.40 and 344,132.09

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Solution

The fourth proportional to 619,773.64, 855,289.40 and 344,132.09 is: 474,903.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,773.64 : 855,289.40 = 344,132.09 : x
  2. Step 2: Convert to fraction form
    619,773.64/855,289.40 = 344,132.09/x
  3. Step 3: Cross multiply
    619,773.64x = 855,289.40 × 344,132.09
  4. Step 4: Simplify right side
    619,773.64x = 294,332,528,776.85
  5. Step 5: Solve for x
    x = 294,332,528,776.85/619,773.64
  6. Step 6: Final answer
    x = 474,903.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.